President Trump launched a bizarre attack on the late Sen. John McCain over ObamaCare.

Trump hopped on Twitter to slam McCain's vote against repealing Obamacare.

"So it was indeed (just proven in court papers) “last in his class” (Annapolis) John McCain that sent the Fake Dossier to the FBI and Media hoping to have it printed BEFORE the Election. He & the Dems, working together, failed (as usual). Even the Fake News refused this garbage!" he tweeted.

"He had far worse 'stains' than this," Trump continued, "including thumbs down on repeal and replace after years of campaigning to repeal and replace!"

The late Republican's daughter, Meghan McCain hit back at Trump in defense of her father, who is not here to defend himself.

"No one will ever love you the way they loved my father," she tweeted out on Saturday. 

"I wish I had been given more Saturday's with him. Maybe spend yours with your family instead of on twitter obsessing over mine?"

The president's words were also blasted by CNN anchor Ana Cabrera on Sunday:

"The president did use his direct line to the American people to take more cheap shots at an American war hero who is not even alive to defend himself," Cabrera said on 'CNN Newsroom.' 

"Trump again slamming the late senator John McCain today, he says, for trying to derail his run for the presidency in 2016."

We all know that Trump will do anything it takes to divert negative attention away from his own cock-ups, but attacking a dead man is a new low.